PHP: single Dimension Array Iterator

1darray.php

<?php
// an array (using PHP 5.4's new shorthand notation)
$arr = ["sitepoint", "phpmaster", "buildmobile", "rubysource",
    "designfestival", "cloudspring"];

// create a new ArrayIterator and pass in the array
$iter = new ArrayIterator($arr);

// loop through the object
foreach ($iter as $key => $value) {
    echo $key . ":  " . $value . "<br>";
}